* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
.container {
  background-image: url("https://img2.baidu.com/it/u=3188739469,4254670530&fm=253&fmt=auto&app=120&f=JPEG?w=1422&h=800");
  background-size: cover;
  background-repeat: no-repeat;
  width: 100vw;
  height: 100vh;
}
